To the OP: The very best people to advise you on what to do with your pup in terms of appropriate veterinary care are vets who have actually seen and examined your pup!
Doing some research on the internet and asking questions on online forums is good for extra knowledge and support....but I caution you not to follow what other people say has worked for their pups unless you explore their suggestions in depth with your veterinarian first! No one can properly diagnose a pup without objective and subjective information! Any medical person worth their salt will tell you that.
Good luck! It sounds like your vet is doing a good job so far. I hope that things go well.
Also: Yes, an animal with a spinal injury can be hurt by someone who does not do the proper diagnostics first on them such as whether it be xrays or MRIs or CTscans. There is a place for alternative procedures...it is not a way to circumvent cost and it does not work for all conditions. As for comments about surgery having risk factors...YES, all procedures and medications have risk factors! We always need to look closely at benefits vs risk!